Container



F. WALLERTZ. CONTAINER. APPLICATION FILED SEPT. 22| 1919.

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l Specineation of Letters Patent.

ratentea not. ai, mein dpplication tiled September 22, 1919. denial Ito. wedde.

To alZ whom vit-may. concern:

Be it known that I, FRANK WALLnnrz, a

citizen of the United-States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful limprovement in Containers, of which the following is a specification.

My invention has reference to containers' formed of brous material or any other suitable or ada table tissue, such'as card-board, straw-boar or the like, which when fabricated to thedesired shape are impregnated with"a suitableA substance so as to render them grease-proof and air-tight, and especially suitable for the packaging of articles of iood. j 1' More especially my present invention has to do with the fabrication of the endjclosures of containers that are cylindrical or other shapeincross section. i 4'The primary object of this present invention is the pro-y vision of means for closing the ends of substantially cylindrical containers that w111 .insure the structure against vleakage in the event the end edges of the side or body walls of the container become-crushed through accident or otherwise. A' further object of this invention is the provision of a bead or shoulder upon the interior ofthe side or body Walls of the container which will function to retain the end closure elements in position and prevent them being forced outwardly, and to this end l provide this bead or shoulder of a material separate from the walls and closures instead of being integral therewith 'as 4has heretofore been the usual practice.

ll prefer to accomplish the divers objects ot myy Invention by the means *and in the manner substantially as hereinafter fully described and as more particularly pointed out in the claims, reference being now had to the accompanying drawin s forming .a part of this speciticatlon, in w ich v v Figure 1- is a vertical central 'section of a cylindrical container fabricated in the `man ner of my invention. l p

lFig.2 is a fragmental view of thel lower lett hand corner thereof, drawn to an exaggerated scale for the purpose of clearness.

lin the drawings, simllar'reference characters are employed tol designate the same parts throng out the views, and by'reference to il, it will be seen the walls of the container are, reterabl formed by coiling or rolling a s eet of rousJ material ortissue. of the desired length and width until the ends thereof overlap and provide inner andouter walls 5 and 6. lt will be understood that while the walls, shown in the drawing, are of the c lindrical type, round 1n cross-section, the s ape of these walls is notessential tothe carryingout oi my invention. 1

llt has been the usual'practice heretofore,

lel with the end edges of the cylinder. These '65 in securing closures in the. ends of the cyllnder to form beads or corrugations paralare usually formed in the material from `Which the cylindrical Walls are fabricated,

and frequently-when moisture is present these beads or corrugations flatten out. and

are of no further use in retaining the end closures imposition. Also it has been the practice to provldeclosures formed of-disks 'having cylindrical or lateral flanges extendingaround theiried es,andithese disks are inserted'into the `en s of the cylinders until the edges of the danges register ,with the end edgesl of the Walls of the cylinder, in which position they aresecured 1n place by some suitable substance or by mechanical means.

When a container is provided with end caps or closures, similar to those last above described, there is a depressed portion in the ends of the container, and in the event the container Ais dropped or struck against they `ends otits wall'the portions extending "beyond the closure disks are liable to be cavedv 1n or crushed to such an extent that the flange on the disk or a ortion thereof will let go from the wall o the cylinder, thus. permitting ai-r and moisture to enter the container, as Well as a leakage of the contents from the container. lt is to overcome these inherent objections'that ll have designed my present structure.'

The bottom closure 'of my container,l preterably, comprises two disks 7 and 8, the tor-l mer being the innfer disk and disposed' dat against the face'oi:1 the outer disk 8. Dlskfi' has a cylindrical or lateral dange 7'? around l'its edge and is inserted into the end ofthecontainer shell with ange positioned inwardly. toward the center of the contalner. Disk'8 is provided with a similar cyllndrical or'lateral flange 8a that is-positioned outwardly so that when the two disks, 7 and 8, are back to back the outer edge of the cylindrical` dange 8a of the outer disk will register with the outer edges of the inner and outer walls, 5 and 6,of the container shell. These lll@ 4tween the meeting disks and their flanges are treated with paraflin or other suitable moisture and greaseproof composition prior to being inserted in the end 0f the shell, or the container may be impre' nated with a suitable moisture resisting su stance, preferably, of a solidif ing or freezing nature after the closure e ements have been assembled therewith. Owing to the fact that flanges 7l and 8 project opposite to each other a slight space is left beortions of the flanges and the adjacent wa l of the shell. In fabricating the structure just described, a bead 9 of the paraffin or other composition fills this space and provides a secure and dependable shoulder against which both the inner and outer disks abut. It will be noted that should the end of the walls become crushed only vthe flange of the outer disk 8 would be loosened or damaged, while inner disk 7 would be retained in its integrity with the wall of the shell through the medium of bead 9 and the adherence of the flange 7a thereof to the wall of the shell.

The manner of closing the opposite end of the container shell is similar in all respects to the closure structure described in connection with the lower or bottom end with the disks 11 may be withdrawn by loosening them around their edges with a knife or similar tool, and this construction also permits the filling of the container after the upper disks 7 and 8 have been secured in position. In other words, the containers would be fabricated entirely as shown in Fig. l of the drawings, with the exception that disks 11 for closing openings 10 would be separate and not secured in position until the container is filled and ready for use.

What I claim is 1. A container of fibrous material the longitudinal walls whereof are formed from a blank of suitable dimensions, closures for the ends thereof, each comprising two elements having right angle lateral flanges adapted to contact and assemble with the longitudinal walls of the container; said elements bein arranged face to face in juxtaposition witiir their flanges extending 1n opposite directions, and a beadl of cementitious material disposed at and between the juncture of the flanges of the two closure elements with the'walls of the container. I

2. A container of fibrous material the longitudinal walls whereof are formed from a blank of suitable dimensions and closures for the ends thereof, each comprising two flanged disks arranged face to face with the flanges disposed in opposite directions upon the interior surface of said longitudinal walls and fixedly secured to said walls.'

Signed at Chicago, county of Cook, and

State of Illinois, this 29th 'day of August, y1919.

FRANK WALLERTZ. Witnesses:

E. K. LUNDY, Jr.,

FLORENCE MITCHELL. 

